In some circles, dressing up as your ex-girlfriend and then parading around in public is considered a bit of faux pas. Sum 41 front man Deryck Whibley knows no such bounds, though. He and partner Ari Cooper went to a Halloween Party dressed as Chad Kroeger and the former Mrs Whibley, Avril Lavigne over the weekend.
And it would seem that Chad is none too happy about it. The Nickelback singer, and Lavigne's future husband, took to Twitter after seeing pictures of the pair's costumes, alleging that he and Lavigne would have dressed up as Sum 41 for Halloween, but added that the band wasn't famous enough for them to bother with the effort: "Hey Deryck loved the costumes! we were going to dress up as you guys this year but all the parties had celebrity themes haha! -CK"
As Ultimate-Guitar has noted, Kroeger has already reacted to those who have responded negatively to his and Lavigne's engagement, claiming that he tries not to take too much interest in the world's opinion of their relationship and that the couple are very happy.
Whibley had been married to Lavigne since 2006, but the pair announced their separation on September 17th, 2009. Lavigne initiated divorce proceedings in October 2009, claiming irreconcilable differences.
For future reference, we suggest that Deryck Whibley does as us Ultimate-Guitar staff have done for many years, and sticks to dressing up as his ex in the privacy of his own home. As we can tell you from personal experience, things don't get too Complicated that way (see what we did there).